Factors influencing the polymer-polymer adhesion- strength during two shot moulding

At the present state of two shot moulding, the adhesion strength of the two different polymers is an important issue. Many fascinating applications of two component or multi component polymer parts are restricted due to the weak interfacial adhesion of the polymers. A thorough understanding of the factors that influence the adhesion strength of subsequently moulded polymers is necessary for multi component polymer processing.

Even when a stronger adhesion is not required the tuning factors should be found out to control the bond strength of two polymers. This paper investigates the effects of the process and material parameters on the adhesion strength of two component polymer parts and sorts out the factors which can effectively control the adhesion between two different polymers.

The results and discussion presented in this paper could be used as a guide for multi component polymer processing.